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A026662 as a simple table

na(n)
21
38
438
5202
6873
74228
817982
983986
10356720
111636710
126967782
1331651902
14135174069
15610281684
162614576678
1711756749378
1850516489196
19226522941742
20975898078974
214367362698334
2218859586883256
2384276937119086
24364693906704798

[1,8,38,202,873,4228,17982,83986,356720,1636710,
 6967782,31651902,135174069,610281684,2614576678,
 11756749378,50516489196,226522941742,975898078974,
 4367362698334,18859586883256,84276937119086,
 364693906704798]